Abstract: Described here in the article are the main aspects of the steel tube as servicing the engineering machinery, including the technical requirements,applicable domestic and foreign standards,the development process,and the future development trend etc. Also focused on are discussions about the development and application of the hi-end seamless steel tube for engineering machinery purpose as demanding such key targets as high strength,high toughness,excellent weldability,high wear resistance and corrosion resistance via analysis of the consumption amount, the standard system difference the material design and the manufacturing optimized path etc. of the seamless steel tubes for engineering machinery service as made at home and abroad. Finally the future development orientation of the said pipe is expected,involving higher performance,green manufacturing and intelligentization.